// @ts-ignore
import { RasterLayer, Scene } from '@antv/l7';
// @ts-ignore
import * as allMap from '@antv/l7-maps';
import * as GeoTIFF from 'geotiff';

async function getTiffData() {
  const response = await fetch(
    'https://gw.alipayobjects.com/zos/antvdemo/assets/light_clip/lightF182013.tiff',
  );
  const arrayBuffer = await response.arrayBuffer();
  const tiff = await GeoTIFF.fromArrayBuffer(arrayBuffer);
  const image = await tiff.getImage();
  const width = image.getWidth();
  const height = image.getHeight();
  const values = await image.readRasters();
  return {
    data: values[0],
    width,
    height,
  };
}

export function MapRender(option: {
  map: string;
  renderer: 'device' | 'regl';
}) {
  const scene = new Scene({
    id: 'map',
    renderer: option.renderer,
    map: new allMap[option.map || 'Map']({
      center: [105, 37.5],
      zoom: 2.5,
    }),
  });
  scene.on('loaded', () => {
    addLayer();
    // scene.setBgColor('#aaa')
  });

  async function addLayer() {
    const tiffdata = await getTiffData();

    const layer = new RasterLayer({
      zIndex: 2,
      visible: true,
    });
    layer
      .source(tiffdata.data, {
        parser: {
          type: 'raster',
          width: tiffdata.width,
          height: tiffdata.height,
          extent: [
            73.4821902409999979, 3.8150178409999995, 135.1066187319999869,
            57.6300459959999998,
          ],
        },
      })
      .style({
        clampLow: false,
        clampHigh: false,
        domain: [0, 90],
        nodataValue: 0,
        rampColors: {
          colors: [
            'rgba(92,58,16,0)',
            'rgba(92,58,16,0)',
            '#fabd08',
            '#f1e93f',
            '#f1ff8f',
            '#fcfff7',
          ],
          positions: [0, 0.05, 0.1, 0.25, 0.5, 1.0],
        },
      });
    scene.addLayer(layer);
    if (window['screenshot']) {
      window['screenshot']();
    }
  }
}
